https://ss.bscstorage.com/playlet-oss-res/video/2025195/%E6%BC%94%E7%A4%BA3.mp4?AWSAccessKeyId=6jndo5gcx079kvpu3myf&Expires=1760941761&Signature=hBcY7TDq%2BZHOARoFKY6CAthju%2Fc%3D
This is the link of the demonstration video. How is this function effect in the video achieved?